recording the growth of these polyps in my tank

I was luckily enough to have some stowaways on the last addition of live rock a nice mature piece which was just under 1kg in weight





I plan to record the growth and numbers of these corals



There are 20 polyps on the live rock and the larger discs are growing nicely - I just have to figure out how to show this on camera

This photo was taken by my Olympus SP-500uz which is a great camera - 5 times the megapixels of my camera phone